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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.18 [2011] >
IJEMS Vol.18(6) [December 2011] >
| Title: | Effect of electrical pulse parameters on the machining performance in EDM |
| Authors: | Gostimirovic, M
Kovac, P
Skoric, B
Sekulic, M |
| Keywords: | EDM
Discharge Current
Pulse Duration
Machining Performance |
| Issue Date: | Dec-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In
electrical discharge machining (EDM) material is removed through periodical electrical discharges between the tool and workpiece. The electrical discharge
energy which is transformed into heat in the discharge zone is of key
importance in EDM. The machining performance of EDM is defined by the
characteristics of electrical discharge pulse. For these reasons, the principle
of EDM and the characteristics of electrical pulse parameters are analyzed in this paper. Discharge current and pulse duration are selected as the most important electrical pulse parameters. In addition, their influence on material
removal rate, tool wear ratio, gap distance and surface roughness are
experimentally investigated. The experiments are conducted on an manganese-vanadium
tool steel using graphite tool electrodes. The study allows efficient
identification of relevant electrical pulse parameters, and the results obtained represent a
technological knowledge base for the selection of optimal EDM machining
conditions. |
| Page(s): | 411-415 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.18(6) [December 2011]
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